Shulker Shells are items in the game Minecraft that drop from Shulkers, which are unique hostile mobs found in End Cities. When defeated, a Shulker has a chance to drop one or two shells. These shells are notable for their use in crafting, particularly for creating Shulker Boxes. Shulker Boxes are special storage containers that retain their contents even when broken, making them highly valuable for inventory management. To craft a Shulker Box, players need one Shulker Shell and a Chest. This functionality allows players to transport items more efficiently throughout the game.